EDUSAT-1

Also called Gsat-3

Prime contractor	ISRO
Platform	I-2K Bus
Operator	Ministry of Education
Mass at launch	1950.5 kg
Dry Mass	819.4 kg
Basic shape
Dimension
Solar array	Total four solar panel of size 2.54 M x 1.525 M generating 2040 W (EOL), two 24 AH NiCd batteries for eclipse support
Stabilization
DC power	2040 W
Design lifetime	7 yrs

Out of service:	Dec 2011
Cause:

GSAT-3, known as EDUSAT is meant for distant class room education from school level to higher education. This is the first dedicated "Educational Satellite" that provide the country with satellite based two way communication to class room for delivering educational materials.
GSAT-3 is co-located with METSAT(KALPANA-1) and INSAT-3C at 74° E longitude.
Interactive education for remote areas of India; 6 C-band and 6 Ku-band transponders. Its transponders and their ground coverage are specially configured to cater to educational requirements.

Ref.: #3(SD387-388), #7, #14, #120, #126, #226 - update: 22.12.13